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Old 07-27-2007, 03:39 PM
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Join Date: Jan 2002
Posts: 608
handloads for .300WSM BLR

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I'm interested particularly in loads for a 150-grain bullet. Accuracy is important of course, but I am not looking for a really hot load. I would like to find a good, solid load for my BLR that would allow for a lot of practice shooting.
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Old 07-28-2007, 06:19 AM
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Location: Utah
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Well, I don't shoot anything with the "M" word in it, but there are plenty of tested loads available at most bullet and powder company websites. If all else fails, you could get nice mild and pleasant loads by using .30-06 load data in your WSM.
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Old 07-28-2007, 08:37 AM
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Join Date: Dec 2004
Location: SW Washington
Posts: 2,700
There's alot of case capacity going empty when you download this cartridge, which does not lend itself to an accurate load.

COnsider using Trailboss...a low density powder used by the Cowboy action shooters. You can pretty much fill the case and get a low recoil load for fun shooting.
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Old 07-28-2007, 03:36 PM
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Great suggestions from both of you that I would not have thought of.

Rocky -- I am a novelist also. Perhaps we can trade some autographed books sometime.
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Old 07-29-2007, 07:24 AM
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Well, no more playing around. I just dug up some reloads from a couple years ago, walked up to my bench in the upstairs of the barn and fired a 1 1/2" group. The load is 68.5 grains of Ramshot Hunter under a 165-grain Hornady SST. No reason to mess around with what works. Besides, Ramshot's headquarters is two minutes away and owned by a highschool classmate of mine. I suspect I can get more Hunter when I need it.
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Old 07-31-2007, 06:52 AM
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Join Date: Aug 2001
Location: Kentucky
Posts: 854
Hello John,

Good to see you, hope everything is going well in your part of the world. I bet that 300 is wonderful in the BLR platform.

I'm a bit of a reluctant champion of the 300 WSM, on the front end the concept seemed to more clever marketing than anything else, but changed my mind after I recieved one as a gift from my lovely bride. I am finding it very useful and flexible, and the physical characteristics of the cartridge contributes to extremely good accuracy. I was most surprised and delighted to find how well it does with heavy bullets, I got nearly 2700 fps with the 220 Grain Nosler Semi-Spitzer, and about that and a half with the 200 grain Speer, using exactly the same charge, so I think I can do better if inclined with the 200.

I have only used IMR 4350, 4831, and Re19, and 22. I'm finding that 2900 fps + is fairly easy to get with the 150-165 grainers, but the 3000 mark is were it gets dodgey, and might take some more tinkering and muscle. The 165s seem to me to be the right mix of flatness and weight, and to me this cartridge might be one of the few that might be suited for a bonded core bullet, otherwise I am not a real fan of "bonding".

I'm still in the honeymoon stage with this rifle/ cartridge, so I am sneaking up on max loads, but have done well accuracy wise with the 180 Nosler Accubond, 165 Horn BTSP, 165 Federal Fusion Factory, and the 155 Horn A-max- all sub Moa. The 168 Barnes TSX, Horn 180 BTSP, and the Nosler 220's went over an inch or so, and that 200 grain Speer load, was Skoal can accuratte, but just barely. Most of these loads are a grain or two under max, so I think they can be improved upon.

Let me know if I can help you out in any way. Otherwise, its good to see you, and I hope the hunt goes well for you.


Experience is a hard teacher, because she gives the test first, and the lesson afterwards.
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Old 07-31-2007, 10:41 AM
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Posts: 608
Steve - Good to hear from you. Real early this morning I found myself thinking about you and wondering if you were still in the Beartooth neighborhood while I was out for a training walk. I came home to your post. By the way, the BLR in .358 that I had is gone. I sold it on the Trading Post and as that rifle was a gift I donated the money to a ministry that feeds children who live in Philippine garbage dumps. I would be interested in your growing knowledge of the .300WSM as there is little on the web concerning this cartridge. Many are advocating 200 grain bullets for it but I plan on staying at 180 and below, and preferably with 165 and 150. I plan on using my BLR in 7-08 for mountain goat and the .300 WSM for elk. When you have time send me an email and update me on the past year or so.
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